The bank had a net profit of Rs 621.77 crore in the July-September quarter of 2013-14 fiscal.
Interest income of the bank rose to Rs 11,093 crore during the quarter, up 20% from Rs 9,239 crore in the year-ago period, BoI said in a filing to the BSE.
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Gross non-performing assets (NPAs) as a percentage of total advances stood at 3.54%, against 2.93% in the same quarter of 2013-14.
Net NPAs stood at 2.32% at the end of September 2014.
The bank's provisioning declined during the quarter to Rs 953 crore from Rs 1,232 crore in the year-ago period.
Total income of the bank increased to Rs 12,099.45 crore in this quarter from Rs 10,339.55 crore in the corresponding quarter of previous fiscal.
Shares of BoI were trading 0.44% up at Rs 286.65 per scrip during afternoon session on the BSE.